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Diffstat (limited to 'erts/doc/src/notes.xml')
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1 files changed, 352 insertions, 1 deletions
diff --git a/erts/doc/src/notes.xml b/erts/doc/src/notes.xml index f5607945a8..3733fb2db9 100644 --- a/erts/doc/src/notes.xml +++ b/erts/doc/src/notes.xml @@ -4,7 +4,7 @@ <chapter> <header> <copyright> - <year>2004</year><year>2010</year> + <year>2004</year><year>2011</year> <holder>Ericsson AB. All Rights Reserved.</holder> </copyright> <legalnotice> @@ -30,6 +30,357 @@ </header> <p>This document describes the changes made to the ERTS application.</p> +<section><title>Erts 5.8.4</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p>Fix binary and iolist overflow problems. Typically + problems arose in length calculation where the result + would exceed (1 bsl 32 - 1).</p> + <p> + Own Id: OTP-9118</p> + </item> + <item> + <p> + Using the old erlang shell (i.e. erl instead on werl) on + windows and doing several init:restart's would eventually + hang the VM. That is no longer the case.</p> + <p> + Own Id: OTP-9139</p> + </item> + <item> + <p> + Removed recursive C code when printing Erlang terms to + buffers, avoiding stack overflows that could cause VM to + crash.</p> + <p> + Own Id: OTP-9140</p> + </item> + <item> + <p> + The send_timeout option in gen_tcp did not work properly + in active mode or with {active,once} options. This is now + corrected.</p> + <p> + Own Id: OTP-9145</p> + </item> + <item> + <p> + Fixed various typos across the documentation (Thanks to + Tuncer Ayaz)</p> + <p> + Own Id: OTP-9154</p> + </item> + <item> + <p>Remove duplicate stack entries which could occur after + calling certain BIFs.</p> + <p> + Own Id: OTP-9163</p> + </item> + <item> + <p> + A race when starting two nodes simultaneously using + run_erl has been removed.</p> + <p> + Own Id: OTP-9164</p> + </item> + <item> + <p> + Add documentation on .erlang processing back again + (Thanks to Gabor Liptak)</p> + <p> + Own Id: OTP-9189</p> + </item> + <item> + <p> + Remove gratuitous paren in driver_entry(Thanks to Tuncer + Ayaz)</p> + <p> + Own Id: OTP-9192</p> + </item> + <item> + <p> + Fix some wrong pointer dereferences (Thanks to Cristian + Greco)</p> + <p> + Own Id: OTP-9194</p> + </item> + <item> + <p> + erts: Remove unused variables (Thanks to Tuncer Ayaz)</p> + <p> + Own Id: OTP-9205</p> + </item> + <item> + <p> + The documentation for <c>init:get_args/0</c> has been + removed. <c>init:get_args/0</c> itself was deprecated in + R9C and removed in R12B. (Thanks to Eric Pailleau.)</p> + <p> + Own Id: OTP-9209</p> + </item> + <item> + <p> + Allow user to specify the IP address epmd binds to</p> + <p> + The IP address(es) epmd binds to can now be specified by + the user, either via epmd's new "-address" option or (if + that's not used) by setting the environment variable + ERL_EPMD_ADDRESS. Multiple addresses may be specified + using a comma-separated list. If the loopback address is + not in this list, it will be added implicitly, so that + the daemon can be queried by an interactive epmd + process.(Thanks to Holger Wei�)</p> + <p> + Own Id: OTP-9213</p> + </item> + <item> + <p> + epmd: include host address in local access check</p> + <p> + In FreeBSD jails, the source and destination address of + connections to localhost are changed to be the IP address + of the jail. Consider connections from the host's IP + address to itself (e.g., the source and destination + address match) to be local for the access control checks. + (Thanks to Michal Santos and Tom at diogunix.com)</p> + <p> + Own Id: OTP-9214</p> + </item> + <item> + <p> + Fix list returned by net_kernel:epmd_module</p> + <p> + Function epmd_module of net_kernel returns a list instead + of an atom, when the epmd_module-flag is used. (Thanks to + Markus Knofe)</p> + <p> + Own Id: OTP-9215</p> + </item> + <item> + <p> + Fix epmd's dbg_perror() output</p> + <p> + The dbg_perror() function now hands the current errno + value over to dbg_gen_printf(). This fixes the problem + that errno had been reset to zero by the time it was used + (to print the corresponding error message) in the + dbg_gen_printf() function. (Thanks to Holger Wei�)</p> + <p> + Own Id: OTP-9223</p> + </item> + <item> + <p> + heart: remove garbage appended to heart command</p> + <p> + heart:get_cmd/0 is documented to return an empty string + if the command is cleared. get_cmd/0 returns 2 extra + bytes: 1 byte for the trailing null, 1 byte from the op + (the op is an unsigned char and 2 bytes are allocated for + it in the returned buffer). (Thanks to Michael Santos)</p> + <p> + Own Id: OTP-9224</p> + </item> + <item> + <p> + file: fix hang reading compressed files</p> + <p> + The gzio driver goes into an infinite loop when reading + past the end of a compressed file. Reported-By: Alex + Morarash (Thanks to Michael Santos)</p> + <p> + Own Id: OTP-9245</p> + </item> + <item> + <p>Eliminate alias warnings from gcc 4.5.2</p> + <p> + Own Id: OTP-9250</p> + </item> + <item> + <p> + Unsigned integer may overflow in error message (Thanks to + Michael Santos)</p> + <p> + Own Id: OTP-9251</p> + </item> + <item> + <p> + Driver names should be strings, not atoms</p> + <p> + Own Id: OTP-9253</p> + </item> + <item> + <p> + driver_entry: Remove gratuitous paren and fix typo + (Thanks to Tuncer Ayaz)</p> + <p> + Own Id: OTP-9254</p> + </item> + <item> + <p> + Fix format specifiers in erl_exit messages</p> + <p> + Fix an error message by using an unsigned integer + specifier as seen in a tweet by @metabrew: #erlang VM + crashed with "no next heap size found: -2090496108, + offset 0", suddenly allocated all available RAM</p> + <p> + Also correct mis-typed string formats in bif.c.(Thanks to + Michael Santos)</p> + <p> + Own Id: OTP-9262</p> + </item> + <item> + <p> + net_drv: remove unused tcp request id inet_drv: remove + gratuitous assignment (Thanks to Tuncer Ayaz)</p> + <p> + Own Id: OTP-9263</p> + </item> + <item> + <p> + Teach run_erl RUN_ERL_DISABLE_FLOWCNTRL for disabling + flow control</p> + <p> + Flow control can cause unwanted behaviour of the beam + process, if accidentally hit Ctrl-S (instead of Ctrl-D to + detach) the entire beam may be blocked.</p> + <p> + Fix this problem by making it possible to turn off flow + control by setting the environment variable + RUN_ERL_DISABLE_FLOWCNTRL. (Thanks to Jonas Faklkevik)</p> + <p> + Own Id: OTP-9270</p> + </item> + <item> + <p>The following bugs due to missing memory barriers have + been fixed:</p> <list> <item><p> ETS tables using the + <c>write_concurrency</c> option could potentially get + into an internally inconsistent state. </p></item> + <item><p> ETS tables using the <c>ordered_set</c> option + could potentially get into an internally inconsistent + state. </p></item> <item><p> A number of memory barriers + have been added when building with the + <c>libatomic_ops</c> API (i.e. when passing + <c>--with-libatomic_ops=PATH</c> to <c>configure</c>) and + the tilera atomics API (i.e. when building for the tilera + chip). Note that these bugs were due to erroneous usage + of the APIs, and not in the implementations of the APIs. + When using these APIs the following bugs where + present:</p> <list> <item><p> The BIF + <c>erlang:ports/0</c> could return an erroneous result. + </p></item> <item><p> A thread blocking other threads + during code loading, or setup of tracing could + potentially read invalid data. </p></item> <item><p> + Fixation of ETS tables could potentially get into an + internally inconsistent state. </p></item> </list> + </item> </list> + <p> + Own Id: OTP-9281</p> + </item> + <item> + <p> + Fix halfword bug for ETS ordered_set when doing + <c>select/match</c> with partly bound key.</p> + <p> + Own Id: OTP-9292</p> + </item> + <item> + <p> + Fix bug in <c>code:is_module_native</c> that caused crash + for deleted modules.</p> + <p> + Own Id: OTP-9298</p> + </item> + <item> + <p> + Calling <c>driver_async_cancel()</c> could cause a + scheduler thread to enter an eternal loop doing no useful + work. (Thanks to Anders Ramsell)</p> + <p> + Own Id: OTP-9302</p> + </item> + </list> + </section> + + + <section><title>Improvements and New Features</title> + <list> + <item> + <p> + New <c>enif_is_exception function</c> to allow NIFs to + determine whether an <c>ERL_NIF_TERM</c> represents an + exception. (Thanks to Steve Vinoski)</p> + <p> + Own Id: OTP-9150</p> + </item> + <item> + <p> + A process being garbage collected by another process + could be scheduled on another scheduler. This prevented + this scheduler from doing any useful work until the + garbage collection was done. This either occurred due to + a explicit call to the <c>garbage_collect/1</c> BIF, or + due to a garbage collection part of code loading. A + process being garbage collected like this will now not be + scheduled until the garbage collection has completed.</p> + <p> + Own Id: OTP-9211</p> + </item> + <item> + <p> + Remove unnecessary validation copy in + prim_file:drv_command/3 (Thanks to Tony Rogvall)</p> + <p> + Own Id: OTP-9276</p> + </item> + <item> + <p> + Symbolic link handling on windows have been slightly + updated to map error conditions more consequently and + correctly read directory links created outside of the + Erlang environment.</p> + <p> + Own Id: OTP-9279</p> + </item> + <item> + <p> + Due to standard library DLL mismatches between versions + of OpenSSL and Erlang/OTP, OpenSSL is now linked + statically to the crypto driver on Windows. This fixes + problems starting crypto when running Erlang as a service + on all Windows versions.</p> + <p> + Own Id: OTP-9280</p> + </item> + <item> + <p>Halfword emulator memory handling improvements:</p> + <list> <item><p>Much more of internal memory structures + have been made able to use "high" memory and are no + longer restricted to the 4Gb limit that still applies for + all process heap data.</p> </item> <item><p>Fixed faulty + values from <c>erlang:memory()</c> caused by 32-bit + counter overflow.</p> </item> <item><p>New counter + <c>low</c> in <c>erlang:memory()</c> that sums up all + memory restricted by 4Gb limit.</p> </item> </list> + <p> + Own Id: OTP-9291 Aux Id: seq11841 </p> + </item> + <item> + <p> + The value set in the undocumented and unsupported + ERL_version_FLAGS (e.g. ERL_R14B03_FLAGS) environment + variable can now be overridden by the command line + (similar to ERL_AFLAGS).</p> + <p> + Own Id: OTP-9297</p> + </item> + </list> + </section> + +</section> + <section><title>Erts 5.8.3.2</title> <section><title>Known Bugs and Problems</title> |